Engineering, 27.02.2020 18:55, amunnik04
The ingredient weights for making 1 yd (cyd) of concrete by assuming aggregates in SSD state are given below. The volume of air is 2% of the total concrete volume. Coarse Aggregates: 1,575 lb; Fine Aggregates: 1,100 lb; Cement: 700 lb; Water: 315 lb Given, the BSGssp of both coarse and fine aggregates is 2.4, specific gravity of cement is 3.15 and the density of water is 62.4 lb/ft?. 1 yd = 3 ft. Part 1: After performing a trial batch, it is determined that we need to increase the mix water content from 315 lb to 328.5 lb to correct the slump. For the same ingredients, recalculate all the ingredient weights in SSD state to achieve the concrete with the same compressive strength. Assume the same volume of air. If you state in your solution that the weight of a particular ingredient remains the same before and after the mix redesign, clearly state the reason behind your assumption for full credit. Note: You do NOT need any mix design table for solving this problem. Part 2: If the moisture content of coarse aggregates is -1% (note the minus sign) and the moisture content of fine aggregates is -2% (note the minus sign), determine the batch weights (also called stockpile or stock weights) of all ingredients for the redesigned concrete of Part 1. Part 3: Determine the expected unit weight and yield of the redesigned concrete of Part 1.
Answers: 2
Engineering, 04.07.2019 18:10, selenamr
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Engineering, 04.07.2019 18:20, yasyyas646646
Agas mixture consists of 8 kmol of h2 and 2 kmol of n2. determine the mass of each gas and the apparent gas constant of the mixture.
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Engineering, 04.07.2019 19:10, kayleeemerson77
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Engineering, 04.07.2019 19:20, carterdaw
Aseries piping system conveys methyl alcohol. the system consists of 70 m of 1- nominal pipe follow by 50 m of 2-nominal pipe, both schedule 40 commercial steel. the 1-nominal pipe contains 3 90° elbows (regular) anda fully open gate valve, all threaded. the pressure drop through the system is 150 kpa. determine the volume flow rate through the system that is horizontally laid.
Answers: 1
The ingredient weights for making 1 yd (cyd) of concrete by assuming aggregates in SSD state are giv...
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